Home / 8,169.35-11,272.53-4,631.88

Finding the Fourth Proportional to 8,169.35, 11,272.53 and 4,631.88

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Solution

The fourth proportional to 8,169.35, 11,272.53 and 4,631.88 is: 6,391.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,169.35 : 11,272.53 = 4,631.88 : x
  2. Step 2: Convert to fraction form
    8,169.35/11,272.53 = 4,631.88/x
  3. Step 3: Cross multiply
    8,169.35x = 11,272.53 × 4,631.88
  4. Step 4: Simplify right side
    8,169.35x = 52,212,949.89
  5. Step 5: Solve for x
    x = 52,212,949.89/8,169.35
  6. Step 6: Final answer
    x = 6,391.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.